<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<a th:href="@{/toLogin}">注销</a>
<a th:href="@{/logout}">注销</a>
<a th:href="@{/1/1}" >level11</a>
<a th:href="@{/1/2}" >level12</a>
<a th:href="@{/1/3}" >level13</a>
================================
<a th:href="@{/2/1}" >level21</a>
<a th:href="@{/2/2}" >level22</a>
<a th:href="@{/2/3}" >level23</a>
==================================
<a th:href="@{/3/1}" >level31</a>
<a th:href="@{/3/2}" >level32</a>
<a th:href="@{/3/3}" >level33</a>
</body>
</html>